.circle-two{
  animation: wave1 ease-in-out 2.1s infinite;
}
@keyframes wave1 {
  30% {
    stroke-width: 4px;
    r: 37.5px;
  }
  60% {
    stroke-width: 4px;
    r: 37.5px;
  }
}
.circle-three{
  animation: wave2 ease-in-out 2.1s infinite;
}
@keyframes wave2 {
  30% {
    stroke-width: 4px;
    r: 40px;
  }
  60% {
    stroke-width: 4px;
    r: 50px;
  }
}